Displays the noise level chart and decibel values (min, average, and max) by measuring sound pressure level on a logarithmic scale

Latest Version

Version
0.2.0
Update
December 11, 2021
Size
122KiB
Developer
Category
Users
3,000+
Rating
3.66667 ★
Manifest Version
3
Web Store Status
Languages Support
Deutsch
English
Français
Nederlands
Español
Italiano
Português (Brasil)
Português (Portugal)
русский
日本語
See more
Permissions
Storage
ContextMenus
See more

Sound Level Meter Extension

This extension displays the current environmental noise level in decibels (dB). The extension can be used to detect harmful environmental noises or to protect your hearing.

This extension offers a popup view to precisely measure the sound pressure level (SPL) all around you by sampling your microphone's raw data using an AudioWorkletProcessor node. The extension displays RMS data in dB compared to a reference volume level. It supports a graphical view to see the last 300 samples in a graph. It also shows statistical results such as min, average, and max values of the recorded samples.

Features:
- Indicates decibel level
- Display the current noise reference
- Display min/avg/max decibel values
- Display decibel by graph
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "version": "0.2.0", "name": "Sound Level Meter", "description": "__MSG_description__", "default_locale": "en", "permissions": [ "storage", "contextMenus" ], "offline_enabled": true, "icons": { "16": "data/icons/16.png", "32": "data/icons/32.png", "48": "data/icons/48.png", "64": "data/icons/64.png", "128": "data/icons/128.png", "256": "data/icons/256.png", "512": "data/icons/512.png" }, "background": { "service_worker": "worker.js" }, "homepage_url": "https://add0n.com/sound-level-meter.html", "action": {}}
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User reviews

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Dylan Renneman (ID: 0000004e39c6aa0b) Voted 1 ★ - Updated 05/11/2023 made me want to jump off a bridge